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Degradation monitoring system and control evaluation method for thick underground ice

A monitoring system and control method technology, applied in signal transmission system, geophysical measurement, seismology, etc., can solve the problems of lack of systems and methods, and achieve the effects of real-time acquisition, high reliability of results, and convenient implementation.

Inactive Publication Date: 2018-04-24
CIVIL AVIATION UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is still a lack of corresponding systems and methods

Method used

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  • Degradation monitoring system and control evaluation method for thick underground ice
  • Degradation monitoring system and control evaluation method for thick underground ice
  • Degradation monitoring system and control evaluation method for thick underground ice

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Embodiment Construction

[0030] The thick-layer subterranean ice degradation monitoring system and control evaluation method provided by the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0031] Such as figure 1 As shown, the thick-layer subsurface ice degradation monitoring system provided by the present invention includes a shear wave generator 1, several geophones 2, a setting hole 3, a wireless controller 4 and a background server; wherein the setting hole 3 is vertically downward from the ground The hole formed, the lower end is located between the upper ice layer 5 and the lower ice layer 6, there are at least two, two or more setting holes 3 are arranged at intervals, one of which is a hole for the generator, and the rest are holes for the detector; The shear wave generator 1 is arranged at the lower part of the generator installation hole, and is close to the upper ice layer 5; several geophones 2 are arranged in on...

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Abstract

The invention provides a degradation monitoring system and a control evaluation method for the thick underground ice. The system comprises a shear wave generator, a plurality of wave detectors, a setting hole, a wireless controller and a background server. The degradation monitoring system and the control evaluation method for the thick underground ice and provided by the invention have the following advantages: 1) convenient implementation: the arrangement of collecting equipment after the hole drilling operation belongs to the conventional construction process, and is easy to implement on site; 2) dynamic collection: the site can be remotely controlled for test purpose according to a collecting plan, and test data can be collected and analyzed in real time; 3) high result reliability: based on the propagation characteristics of shear waves in different media, the position change of upper and lower ice layers in the thick underground ice is tested. Therefore, the degradation degree ofthe thick underground ice is judged.

Description

technical field [0001] The invention belongs to the technical field of frozen soil, and in particular relates to a thick-layer underground ice degradation monitoring system and a control evaluation method. Background technique [0002] Thick-layer underground ice is a common natural geographical phenomenon in permafrost regions. It is characterized by ice lenses that are layered and distributed parallel to the lower part of the surface. The ice lens was formed and gradually thickened. In the following years, the climate became colder, the deep ice did not melt, and a new segregated ice layer formed on its upper part. Similar to a sandwich, ice-soil intervals are distributed between thick layers of subsurface ice. [0003] The existence of the ice layer changes the local working ability of the soil foundation, especially the thickening and thinning of the ice layer during the freeze-thaw cycle significantly changes the working performance of the soil foundation. When there ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V1/30G08C17/02
CPCG01V1/306G01V2210/6224G08C17/02
Inventor 刘国光武志玮
Owner CIVIL AVIATION UNIV OF CHINA